HRYSHCHUK, M.; RUBANENKO, O.; RUBANENKO , O. Planning of maintenance of power transformers on the results of control of their frequency characteristics. Lighting Engineering & Power Engineering, [S. l.], v. 3, n. 56, p. 92–98, 2020. Disponível em: https://lepe.kname.edu.ua/index.php/lepe/article/view/423. Acesso em: 12 may. 2025.